"OK, first of all, one postpartum fitness tip is more important than all others: Do not compare yourself to other people and other people's bodies. This holds true whether those people are moms or not and whether they’ve just given birth or not. (And it especially holds true if they alter their gym selfies before they put them on Instagram — in fact, we suggest unfollowing those people for the foreseeable future.)" -Claire Gillespie of SheKnows